WILMINGTON — After being demoted midway through the first period of Saturday night’s 2-1 loss at Montreal, moving from second-line center to third-line wing, Tyler Seguin found himself wearing a gray sweater and skating on the third line along with Daniel Paille, Chris Kelly, and Jay Pandolfo during Sunday’s practice at Ristuccia Arena.

With Patrice Bergeron out indefinitely with a concussion, Seguin had been forced to make an adjustment and center Brad Marchand and Jaromir Jagr on the second line. But when he struggled with that assignment, Seguin was dropped to the third line with Paille and Gregory Campbell, who earned a promotion and skated with Marchand and Jagr on the second line in practice in preparation for Monday night’s game against the Hurricanes at TD Garden.

“Right now, I don’t think we’ve got a [No.] 1, 2, 3 or 4 [line],’’ coach Claude Julien said. “As you can see, there are good players on every line. We move players around a little bit, maybe to balance things for the time being. But right now it’s about playing your game as an individual; you shouldn’t care where you are, you should care what you bring.’’

Seguin declined to speak with reporters following practice, saying he had been told not to talk.

“He’s been fine like that,’’ Julien said when asked how Seguin handled his demotion. “There are no issues. I don’t feel like I have to explain myself to every player for every move that I make.

“They understand that we’re trying to win here and that’s all that should matter.”

Asked about Seguin’s play the last two games — no goals, no assists, three shots, including none in 16:15 minutes of ice time against the Canadiens — Julien replied, “I’m not into making assessments. I’m not into throwing players under the bus. I’m into making them better players, so if there are some issues, I’ll talk to them individually.’’

Julien said his reasoning behind his shuffling of the lines was “to get some flow going consistently to keep the momentum of the game going in our favor.”

Asked if was difficult to break up his top line of Milan Lucic-David Krejci-Nathan Horton, Julien said, “They were our best line [Saturday], so it’s hard to break up that line. Right now I’m trying to fix the other lines that aren’t bringing much for the time being, so that’s where I stand with that.’’

Getting it to net

Given how Saturday night’s game ended, with the Bruins attempting nary a shot during a six-on-four advantage over the last 57 seconds, Julien made getting the puck on net a point of heavy emphasis during practice.

“We didn’t shoot pucks [Saturday night],’’ Julien said. “We shot pucks today. It’s as simple as that. I’ll say it again, it was disappointing as a coach to watch that, to have the puck in their own end the whole time and not having a shot.”

“Sometimes we tend to look for the perfect plays, but there was no excuse. There is no excuse for us not creating a shot. We looked at it over again, and we could’ve easily had five great opportunities to put pucks on the net and we didn’t.

“The power-play work [Sunday] was about making sure we got pucks to the net and that’s what we did.’’

Finding his way

After the Bruins acquired Jagr last Wednesday, it seems Julien has had some difficulty finding a spot for the future Hall of Famer, who has yet to be paired with his fellow Czech teammate, Krejci. “We’re short on centermen, so it’s not about finding a place for Jags,’’ Julien said. “Because, again, it’s really not about Jags. We didn’t get him to build the team around him. We got him to fill in a spot we think will help us. When guys are back and we have a healthy team, he’ll be in a spot where I think he’ll be good.’’ . . . Defenseman Adam McQuaid, who was expected to miss 4-6 weeks with a shoulder strain, was back on the ice, skating with the team for the first time since suffering his injury. “He started skating and didn’t take much contact today,’’ Julien said. “He’s not in [Monday], if that’s what you want to know, but he’s progressing and going in the right direction.’’ . . . Chris Kelly, who missed his 14th straight game Saturday night after breaking his left tibia March 11, was also back on the ice, skating with the team in a full practice for the second time since injuring his leg. “Same thing, he’s doing well,’’ said Julien, who indicated Kelly’s status remained day-to-day. “We’ll see how things go with the medical staff, because I still need the clearance from them, but he practiced a little harder [Sunday] and so he’s inching closer and closer every day.’’